A bird on a long migration flies 63 kiometers per hour for 2900 kilometers. How long does he fly

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

How many molecules are present in 3 mols of silicon dioxide (sio2)?

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a